Cooper Crouse-Hinds GmbH
6
6
6
6
6
6.2
Opening the apparatus/
Electrical connection
Before opening the apparatus, it is
necessary to ensure that there is no
voltage or to take suitable protective
measures.
The electrical connection of the apparatus
may only be carried out by skilled staff
and in acc. to EN 60079-14.
The table indicating the current load values
which is provided on the cover inside of the
terminal boxes must be observed.
The insulation of the conductors shall
reach up to the terminal. The conductor
itself shall not be damaged.
The properly bared conductors of the cables
shall be connected, taking into account the
respective regulations.
The connectible min. and max. conductor
cross-sections will have to be observed.
All screws and/or nuts of the supply
terminals, and unused terminals, shall be
tightened down.
The fitted standard terminals are designed
for direct connection of conductors with
copper cores.
The conductors shall be connected with
special care in order to maintain the
explosion category.
The supply terminals are designed for the
connection of copper conductors. If multi- or
fine-wire connecting cables are used, the
wire ends will have to be handled in acc. with
the applicable national and international rules
(e. g. use of ferrules).
If stud terminals are fitted, DIN cable lugs
shall be used.
Attention: The cable lugs should be
crimped onto the cable in a workmanlike
manner.
It is to be ensured that the required min.
air gaps are kept (at 690V >12mm).
In case of mixed equipment Ex e / Ex-i,
the required minimum distances will have
to be kept (see e.g. EN 50 020).
When apparatus is open, it is necessary to
ensure (disconnect voltage supply) that
no voltage is carried over into the
connected intrinsically safe circuits.
The installation instructions for intrinsically
safe electrical apparatus shall be observed.
It is necessary to ensure that the permissible
external capacitance and inductance of the
special intrinsically safe circuits are not
exceeded.
2
Safety instructions
The stainless steel terminal boxes
are not suitable for Zone 0 and
tone 20 hazardous areas.
The temperature class and explosion
group marked on the terminal boxes have
to be observed.
The operations must be carried out by
electrical suitably trained in hazardous
areea with knowledge of increased safety
explosion protection.
The apparatus shall not be used in dust
layers > 50mm acc. to EN 50281-1-1.
Modifications to the terminal boxes or
changes of their design are not permitted.
They have to be used for their intended
purpose and in perfect and clean condition.
Prior to taking the terminal boxes into
operation, they will have to be checked in
accordance with the instruction as per
section 6.
Before the initial operation, any foreign
matter will have to be removed from the
terminal boxes.
Observe the national safety rules and
regulations for prevention of accidents as
well as the safety instructions included in
these operating instructions and set in
italics the same as this text!
Explosion protected terminal boxes made of plastic or
stainless steel type GHG 725
3
Conformity with standards
These explosion protected terminal boxes
meet the requirements of EN 50 014, EN 50
019, EN 50 020 and EN 50 281-1-1,
(comparable international standards
IEC 60079-0, IEC 60079-7, IEC60079-11).
94/9 EC: Equipment and protective systems
intended for use in potentially explosive
atmospheres.
The terminal boxes also fulfil further
requirements such as those of directive on
electromagnetic compatibility (89/366/EEC).
They have been designed, manufactured and
tested according to the state of the art and
according to BS EN ISO 9001
4
Field of application
The stainless steel terminal boxes are
suitable for use in Zone 1 and 2 as well as in
Zones 21 and 22 hazardous areas acc. to
EN 60049-14 and IEC 60 079-10!
The enclosure materials employed, including
the exterior metal parts, are made of high-
quality materials which ensure a corrosion
protection and resistance to chemical sub-
5
5
5
5
5
Use / Properties
Use / Properties
Use / Properties
Use / Properties
Use / Properties
The terminal boxes are intended for the
distribution of electrical energy, e.g. light
circuits, heating circuits, control circuits,
intrinsically safe circuits etc.(as to temperature
class, explosion group, permissible ambient
temperature, see technical data).
The electrical limiting values that are
decisive for the intrinsic safety shall be
observed.
The terminal boxes can also be used in a
„normal industrial area“.
The data as per point 3 and 4 will have to
be taken into account with the use.
Applications other than described are not
permitted without COOPER CROUSE-
HINDS´s prior written consent.
For the operation, the instructions stated in
section 7 of the operating instructions will
have to be observed.
The responsibility for the suitability and proper
use of the terminal boxes lies on the user.
6
6
6
6
6
Installation
Installation
Installation
Installation
Installation
For the mounting and operation, the
respective national regulations equipment as
well as the general rules of engineering will
have to be observed.
6.1
6.1
6.1
6.1
6.1
Mounting
Mounting
Mounting
Mounting
Mounting
The stainless steel terminal boxes can be
mounted without opening their enclosure.
When mounting the terminal boxes directly
onto the wall, they shall rest evenly only on
the fastening points provided for them.
The chosen screw must match the fastening
hole.
They shall not damage the hole (e.g. use
of a washer).
To fix the enclosures, use all four fixing lugs
are provided
.
stances corresponding to the requirements in
a "normal industrial atmosphere":
- polymer cr
(seals)
- silicon
(seals)
- pur
(seals)
- special stainless steel V4 A AISI 316
In case of use in an extremely aggresive
atmosphere, please refer to manufacturer
